keysMoveWindowTo (x, y) (gx, gy) moves the window relative
point (gx, gy) to the point (x,y), where (gx,gy) gives a
position relative to the window border, i.e. gx = 0 is the left
border, gx = 1 is the right border, gy = 0 is the top border, and
gy = 1 the bottom border.